Two papers of his were read at the Royal Society in October 1892. The first described experiments undertaken by Mr. Romanes, the primary object of which was to ascertain whether seeds which had been kept out of contact with air for a lengthy period of time still possessed the power of germination. The method adopted was as follows: a certain number of seeds were taken from each packet, mustard, cress, beans, peas, &c., being the kinds employed, and having been weighed in a chemical balance were sealed up in tubes which had previously been exhausted of air, and kept exposed to the vacuum for a period of fifteen months. At the end of that time they were removed from the tubes and sown in flower-pots buried in moist soil. In some cases, after the seeds had been in the vacuum tubes for three months, they were transferred to other tubes charged with pure gases, such as oxygen, nitrogen, hydrogen, carbon monoxide, or with aqueous or chloroform vapour, and there kept for a further period of twelve months, when they were sown as before. In all cases the same number of seeds, of similar weights to those sealed up in the tubes, were taken from each packet, kept in ordinary air for the fifteen months, and then sown as control experiments. The results clearly showed that the germinating power of the seeds was hardly, if at all, affected either by being exposed to the vacuum or to the atmospheres of the various gases and vapours. Further, in no single case, in the hundreds of seeds so treated, did the plants produced from them differ from the standard types grown from the control seeds even in the smallest degree. The second paper described experiments in heliotropism, which had been undertaken by Mr. Romanes with the object of ascertaining whether plants would bend towards a light that is not continuous, but intermittent.